Módulo controlador de escudo integrado DRV8835 2 motores DC 1.2A PWM para Arduino

MANUALE

Modulo Shield Driver integrato DRV8835 per 2 motori DC corrente massima 1,2A tensione 1,5 – 11V controllo PWM per Arduino.

This motor driver shield and its corresponding Arduino library make it easy to control a pair of bidirectional, brushed DC motors with an Arduino or Arduino clone. The board features Texas Instruments’ DRV8835 dual H-bridge motor driver IC, which allows it to operate from 1.5 V to 11 V and makes it particularly well suited for driving small, low-voltage motors. The shield can deliver a continuous 1.2 A per channel and tolerate peak currents up to 1.5 A per channel for a few seconds, and the channels can be optionally configured to run in parallel to deliver twice the current to a single motor. The shield ships fully populated with its SMD components, including the DRV8835 driver and a FET for reverse battery protection; header pins for interfacing with an Arduino and terminal blocks for connecting motors and power are included but are not soldered in (see the Assembly with included hardware section below).

The shield uses digital pins 7, 8, 9, and 10 for its control lines, though the control pin mappings can be customized if the defaults are not convenient. It should be compatible with any board that has a standard Arduino pin arrangement and the ability to generate PWM signals on pins 9 and 10, such as an Arduino Uno, Leonardo, Due, or Mega 2560. This shield is intended to provide a low-cost, basic motor driver option for Arduinos, so it is much smaller than typical Arduino shields and does not include pass-through, stackable headers. For higher-power drivers with more configuration options, see our larger MC33926 and VNH5019 motor driver shields. For a higher-voltage alternative to this shield, please consider the A4990 dual motor driver shield. We also have a similar DRV8835 motor driver kit for the Raspberry Pi Model B+, as well as a smaller DRV8835 carrier (and an even smaller single-channel DRV8838 carrier) for those using a different controller or with tighter space constraints.

Features

• Dual-H-bridge motor driver: can drive two DC motors or one bipolar stepper motor

• Motor supply voltage: 1.5 V to 11 V

• Logic supply voltage 2 V to 7 V

• Output current: 1.2 A continuous (1.5 A peak) per motor

• Motor outputs can be paralleled to deliver 2.4 A continuous (3 A peak) to a single motor

• PWM operation up to 250 kHz (ultrasonic frequencies allow for quieter motor operation)

• Two possible interface modes: PHASE/ENABLE (default – one pin for direction, another for speed) or IN/IN (outputs mostly mirror inputs)

• Shield can optionally power the Arduino base directly when motor supply voltage is suitable

• Arduino library makes it easy to get started using this board as a motor driver shield

• Arduino pin mappings can be customized if the default mappings are not convenient

• Reverse-voltage protection on motor power supply

• Under-voltage lockout and protection against over-current and over-temperature

Using the shield The shield plugs into Arduino digital pins 6, 7, 8, 9, and 10 on one side and Arduino VIN, GND, GND, and 5V/VCC on the other. The upper-left corner of the shield partially blocks the Arduino’s 3.3V pin, but this region of the board (marked with a white silkscreen box) can be removed if necessary to allow access. The shield also blocks Arduino digital pin 6, but it provides alternate access points to this pin via the neighboring through-holes. The board does not use pin 6 for anything. In the shield’s default state, the motor driver shield and Arduino are powered separately, though they share a common ground and the Arduino’s 5V rail serves as the shield’s logic supply. When used this way, the Arduino must be powered via USB, its power jack, or its VIN pin, and the shield must be supplied with 1.5 V to 11 V through its large VIN and GND pads. Attempting to power the shield from the Arduino is not recommended as this could result in large currents flowing through small traces. However, if the motor power supply is suitable, it is possible to power the Arduino from the shield. This can be accomplished by placing a jumper between the shield pins in the lower-left corner labeled VOUT and AVIN, which connects the reverse-protected motor supply voltage to the Arduino’s VIN pin to power the Arduino. The Arduino’s power jack must remain disconnected at all times in this configuration.

Sono disponibili shield di espansione per espandere le capacità di comunicazione e elaborazione della board Arduino. Le puoi acquistare qui: EBAY | MECTRONICA STORE

Contenuto del kit:

• modulo

• connettori

Informazioni aggiuntive

• Peso lordo: 2.3 g